US4665649A - Gate operator and latch mechanism for refuse container - Google Patents

Gate operator and latch mechanism for refuse container Download PDF

Info

Publication number
US4665649A
US4665649A US06/731,064 US73106485A US4665649A US 4665649 A US4665649 A US 4665649A US 73106485 A US73106485 A US 73106485A US 4665649 A US4665649 A US 4665649A
Authority
US
United States
Prior art keywords
latch
gate
link
connection portion
pivotally
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/731,064
Other languages
English (en)
Inventor
Henry M. Hund, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dempster Systems Inc
Southern Railway Co
Original Assignee
Dempster Systems Inc
Southern Railway Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dempster Systems Inc, Southern Railway Co filed Critical Dempster Systems Inc
Priority to US06/731,064 priority Critical patent/US4665649A/en
Assigned to DEMPSTER SYSTEMS INC., A CORP OF OH reassignment DEMPSTER SYSTEMS INC., A CORP OF OH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HUND, HENRY M. JR.
Priority to DK205586A priority patent/DK205586A/da
Priority to NO861783A priority patent/NO861783L/no
Priority to NZ216046A priority patent/NZ216046A/en
Priority to AU57112/86A priority patent/AU5711286A/en
Priority to EP86303428A priority patent/EP0201313A3/en
Priority to FI861887A priority patent/FI861887L/fi
Publication of US4665649A publication Critical patent/US4665649A/en
Application granted granted Critical
Assigned to SANWA BUSINESS CREDIT CORPORATION A DE CORPORATION reassignment SANWA BUSINESS CREDIT CORPORATION A DE CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEMPSTER, INC., A CORPORATION OF OH
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse

Definitions

  • This invention pertains to a refuse container which is provided with a pivotally mounted gate which closes an opening from which refuse is discharged from the container.
  • This invention also pertains to a latch mechanism which secures the gate in closed position and operator mechanism which operates the gate and which also operates the latch mechanism.
  • An object of this invention is to provide operator mechanism which moves a gate of a refuse container between closed position and an open position.
  • the operator mechanism also operates a latch mechanism which functions to secure the gate in closed position and in which the latch mechanism is operable to release the gate to permit the gate to be opened.
  • Another object of this invention is to provide such operator mechanism which is capable of applying a high degree of force to a latch mechanism for closing the gate and for latching the gate.
  • Another object of this invention is to provide such a latch mechanism in which the latching forces automatically increase as internal opening pressure is applied upon the gate.
  • Another object of this invention is to provide such operator mechanism which is capable of relatively large magnitudes of work in consideration of the physical size of the mechanism.
  • Gate operator and latch mechanism of this invention comprises a linearly operable fluid motor which is operably joined to a gate for pivotal movement of the gate and which is also operably joined to latch mechanism for latching and unlatching the gate.
  • FIG. 1 is a fragmentary side elevational view showing a portion of a refuse container provided with a gate. This view also shows a gate operator and latch mechanism of this invention. This figure shows the gate in closed and latched condition.
  • FIG. 2 is a fragmentary side view, similar to FIG. 1, showing the gate in an open position.
  • FIGS. 3, 4, and 5 fragmentary side elevational views, drawn on a larger scale than FIGS. 1 and 2 and illustrating operation of the latch mechanism as the gate pivotally moves adjacent the refuse container.
  • FIG. 1 shows a portion of a refuse container 10 which is provided with a gate or closure member 12. Hinge elements 14 and 16 at the upper portion of the refuse container 10 and at the upper portion of the gate 12 hingedly attach the gate 12 to the refuse container 10.
  • An elongate linearly operable fluid motor 18 has a housing 20 and an actuator rod 22. The housing 20 is pivotally attached to the lower portion of the refuse container 10 by means of a pin 26.
  • a lever 30 is pivotally attached to the upper portion of the gate 12 by means of a pin 32, which is intermediate the ends of the lever 30. Adjacent the lever 30 is a limit member 31 and a limit member 33, which are engageable by the lever 30 to limit the pivotal movement thereof. When the gate 12 is completely closed, the lever 30 is in engagement with the limit member 33, as shown in FIG. 1.
  • the actuator rod 22 of the fluid motor 18 is pivotally attached to an end portion of the lever 30 by means of a pin 34.
  • a rigid arm 38 has an upper end portion pivotally attached to the opposite end portion of the lever 30 by means of a pin 40.
  • a link 44 is pivotally attached to the lower portion of the gate 12 by means of a pin 46.
  • the rigid arm 38 has a lower end portion which is pivotally attached to the link 44 by means of a pin 48.
  • Pivotally attached to the link 44 by means of a pin 50 is a latch 54.
  • the pin 50 is intermediate the ends of the link 44 and is between the pin 46 and the pin 48.
  • the latch 54 has a connection portion 54a which is joined to the pin 50.
  • the latch 54 also has a main portion 54b, which is angular with respect to the connection portion 54a. At the juncture of the main portion 54b and the connection portion 54a the latch 54 has an abutment portion 54c which is engageable with the pin 46 which extends axially from the surface of the gate 12.
  • the latch 54 also has a hook end portion 54d.
  • an engagement surface 58 which is engageable by the lower surface of the latch 54, with pivotal movement of the latch 54.
  • a latch pin 64 At the lower portion of the refuse container 10 is a latch pin 64.
  • FIG. 1 shows the gate 12 in closed position with respect to the refuse container 10.
  • This figure also shows the latch 54 in latched position.
  • the hook end portion 54d of the latch 54 is in firm engagement with the latch pin 64.
  • the actuator rod 22 of the fluid motor 18 is positioned substantially entirely within the housing 20.
  • the lever 30 is pivoted in its maximum counter clockwise position, as the lever 30 engages the limit member 33, as shown in FIG. 1.
  • the arm 38 and the link 44 are in the upper positions thereof.
  • the connection portion 54a of the latch 54 is in the upper position thereof. In this position of the latch 54, the pin 46 which extends axially from the surface of the gate 12, is engaged by the abutment portion 54c of the latch 54.
  • the gate 12 When it is desired to discharge refuse from the refuse container 10, the gate 12 is pivotally moved upwardly. To pivotally move the gate 12, the fluid motor 18 is operated. The actuator rod 22 of the fluid motor 18 is moved in a direction from the housing 20. The actuator rod 22 thus applies a force upon the lever 30. This force pivotally moves the lever 30 in a clockwise direction, as viewed in FIGS. 1 and 2. This pivotal movement of the lever 30 forces the arm 38 to move generally axially downwardly. Downward movement of the arm 38 causes pivotal movement of the link 44 in a clockwise direction, as viewed in FIGS. 1 and 2. This pivotal movement of the link 44 about the pin 46 forces the connection portion 54a of the latch 54 downwardly.
  • connection portion 54a of the latch 54 moves downwardly, the lower part of the latch 54 engages the engagement surface 58.
  • the hook end portion 54d of the latch 54 is moved upwardly as the connection portion 54a of the latch 54 moves downwardly.
  • the hook end portion 54d of the latch 54 moves away from the latch pin 64.
  • the gate 12 is free to pivotally move upwardly.
  • the fluid motor 18 When it is desired to close the gate 12, the fluid motor 18 is operated to move the actuator rod 22 downwardly and toward the housing 20. This downward movement of the actuator rod 22 moves the lever 30 downwardly without pivotal movement of the lever 30. This downward movement of the actuator rod 22 permits the gate 12 to move pivotally downwardly.
  • the lever 30 As the fluid motor 18 moves the gate 12 pivotally downwardly, the lever 30 is pivotally moved in a counterclockwise direction. Thus, the arm 38 is moved upwardly, and the link 44 is pivotally moved upwardly.
  • the latch 54 As the gate 12 pivotally moves downwardly the latch 54 is carried downwardly with pivotal downward movement of the gate 12, and the latch 54 moves toward the lower portion of the refuse container 10.
  • FIGS. 3, 4, and 5 illustrate operation of the latch 54 as the gate 12 pivotally approaches the refuse container 10.
  • the connection portion 54a of the latch 54 is moved upwardly by upward pivotal movement of the link 44.
  • the hook end portion 54d is moved downwardly, as the lower surface of the latch 54 moves in engagement with the engagement surface 58.
  • the latch 54 pivotally moves, and the hook end portion 54d is moved to a position above the latch pin 64, as shown in FIG. 3.
  • the hook end portion 54d approaches the latch pin 64, the abutment portion 54c of the latch 54 approaches the pin 46.
  • the arm 38 is moving upwardly and pivotally moving the link 44 upwardly.
  • the link 44 is moving the connection portion 54a of the latch 54 upwardly, and the hook portion 54d of the latch 54 moves downwardly and engages the latch pin 64, as shown in FIG. 4.
  • the gate 12 is not fully closed. Additional upward movement of the connection portion 54a of the latch 54 by upward movement of the link 44 results in movement of the abutment portion 54c into engagement with the pin 46.
  • the latch 54 is pivotally moved about the pin 50 and into firm engagement with the latch pin 64.
  • there is additional pivotal movement of the latch 54 and the lower portion of the gate 12 is drawn into secure firm engagement with the lower portion of the container 10, as illustrated in FIG. 5.
  • the link 44 is capable of firm pivotal movement of the latch 54 about the pin 50 and about the engagement surface 58.
  • a very significant force is applied to the latch 54 for drawing the lower portion of the gate 12 toward the lower portion of the refuse container 10.
  • the gate 12 is firmly closed upon the refuse container 10.
  • the pin 48 of the link 44 is above a centerline drawn through the pins 46 and 50 when the gate 12 is closed.
  • an over center position exists in the link 44, and the latch 54 is maintained in firm engagement with the latch pin 64 when the arm 38 is maintained in its position shown in FIG. 1.
  • the mechanism of this invention includes latch mechanism and also includes motor and linkage means for operation of the latch mechanism and for pivotal movement of the gate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Receptacles (AREA)
  • Refuse-Collection Vehicles (AREA)
US06/731,064 1985-05-06 1985-05-06 Gate operator and latch mechanism for refuse container Expired - Fee Related US4665649A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US06/731,064 US4665649A (en) 1985-05-06 1985-05-06 Gate operator and latch mechanism for refuse container
AU57112/86A AU5711286A (en) 1985-05-06 1986-05-05 Gate closure mechanism
NO861783A NO861783L (no) 1985-05-06 1986-05-05 Betjenings- og laasemekanisme for luke for avfallsbeholder.
NZ216046A NZ216046A (en) 1985-05-06 1986-05-05 Gate and hatch operator mechanism for a refuse container
DK205586A DK205586A (da) 1985-05-06 1986-05-05 Bevaegelig port for en affaldscontainer
EP86303428A EP0201313A3 (en) 1985-05-06 1986-05-06 Gate operator and latch mechanism for refuse container
FI861887A FI861887L (fi) 1985-05-06 1986-05-06 Regelanordning och manoevreringsanordning foer lucka foer en sopcontainer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/731,064 US4665649A (en) 1985-05-06 1985-05-06 Gate operator and latch mechanism for refuse container

Publications (1)

Publication Number Publication Date
US4665649A true US4665649A (en) 1987-05-19

Family

ID=24937912

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/731,064 Expired - Fee Related US4665649A (en) 1985-05-06 1985-05-06 Gate operator and latch mechanism for refuse container

Country Status (7)

Country Link
US (1) US4665649A (da)
EP (1) EP0201313A3 (da)
AU (1) AU5711286A (da)
DK (1) DK205586A (da)
FI (1) FI861887L (da)
NO (1) NO861783L (da)
NZ (1) NZ216046A (da)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796385A (en) * 1987-08-05 1989-01-10 Tyler Michael E Gate locking device
US4802604A (en) * 1988-02-24 1989-02-07 Scott Manufacturing, Inc. Module builder back door latch
US4854076A (en) * 1988-07-15 1989-08-08 Sieben Murray K Remotely operated hatch covers for tank trucks and the like
US5092656A (en) * 1989-10-02 1992-03-03 Payhauler Corporation Automatic latching device for tailgate
US5158340A (en) * 1991-09-05 1992-10-27 Mcneilus Truck And Manufacturing, Inc. Tailgate mechanism for rear loading compactor
US5498067A (en) * 1994-01-14 1996-03-12 Mcneilus Truck And Manufacturing, Inc. Lifting latch hinge for tailgate on refuse hauler/compactor
US6062368A (en) * 1995-10-27 2000-05-16 Wilkinson Company, Inc. Automatic bottom-hinged intake door
US20040180653A1 (en) * 2003-03-12 2004-09-16 The Boeing Company Modular aircraft information network system and an associated method of packaging the same
US6880895B1 (en) 2002-03-15 2005-04-19 Somerset Welding & Steel, Inc. Vehicle body having a tailgate system operable in a plurality of modes
US8899637B2 (en) 2011-07-21 2014-12-02 Cnh Industrial America Llc Round baler tailgate latch
US20150135604A1 (en) * 2008-08-06 2015-05-21 SafePro, L.P. Safety hatch system
CN107345466A (zh) * 2017-06-27 2017-11-14 武汉理工大学 厢式电动清扫车尾门启闭、锁紧装置
US20180080265A1 (en) * 2016-09-19 2018-03-22 Buyers Products Company Latch assembly and tailgate for vehicle
US10370816B2 (en) 2009-06-26 2019-08-06 Rooftop Anchor Incorporated Integrated safety rail protection system
CN110159125A (zh) * 2019-06-19 2019-08-23 青岛同辉汽车技术有限公司 一种箱门锁紧开启一体化机构
US12516554B2 (en) * 2023-05-05 2026-01-06 Con-Tech Manufacturing, Inc. Refuse collection vehicle tailgate lock system
US12540495B2 (en) 2022-03-11 2026-02-03 Oshkosh Corporation Refuse vehicle with locking tailgate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE557701C (de) * 1932-08-26 Oskar Schoerling Beim Kippvorgang eines Wagenkastens sich selbsttaetig oeffnende und schliessende Kastenklappe mit besonderer Verriegelungsvorrichtung
GB876349A (en) * 1959-02-12 1961-08-30 George Edgar Neville Improvements relating to the tail boards of tipping lorry bodies
US3272552A (en) * 1964-01-15 1966-09-13 Heil Co Latch and tailgate operating mechanism for truck bodies
DE2345597A1 (de) * 1973-09-10 1975-03-27 Meiller Fahrzeuge Kippbruecke mit zumindest einer abklappbaren bordwand
US4307541A (en) * 1979-11-30 1981-12-29 Dempster Systems Inc. Tail-gate operating and locking mechanism

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1056663A (fr) * 1951-05-28 1954-03-01 Keller & Knappich Gmbh Dispositif pour actionner les fermetures des couvercles de camions à ordures ménagères
US2712955A (en) * 1952-09-15 1955-07-12 Clark Hartwell Draw-in type flush latch
US2904141A (en) * 1957-04-22 1959-09-15 Clark Hartwell Adjustable hook latch
US3078121A (en) * 1959-12-03 1963-02-19 Dempster Brothers Inc End gate for compaction-type bodies
US3259411A (en) * 1963-12-17 1966-07-05 Camloc Fastener Corp Drawhook toggle latch
US3233760A (en) * 1964-03-12 1966-02-08 Hercules Galion Prod Inc Refuse collecting vehicle
BE711004A (da) * 1968-02-20 1968-07-01
DE2744902C3 (de) * 1977-10-06 1980-09-25 Industrie-Werke Karlsruhe Augsburg Ag, 7500 Karlsruhe Beladevorrichtung für ein Nutzfahrzeug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE557701C (de) * 1932-08-26 Oskar Schoerling Beim Kippvorgang eines Wagenkastens sich selbsttaetig oeffnende und schliessende Kastenklappe mit besonderer Verriegelungsvorrichtung
GB876349A (en) * 1959-02-12 1961-08-30 George Edgar Neville Improvements relating to the tail boards of tipping lorry bodies
US3272552A (en) * 1964-01-15 1966-09-13 Heil Co Latch and tailgate operating mechanism for truck bodies
DE2345597A1 (de) * 1973-09-10 1975-03-27 Meiller Fahrzeuge Kippbruecke mit zumindest einer abklappbaren bordwand
US4307541A (en) * 1979-11-30 1981-12-29 Dempster Systems Inc. Tail-gate operating and locking mechanism

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796385A (en) * 1987-08-05 1989-01-10 Tyler Michael E Gate locking device
US4802604A (en) * 1988-02-24 1989-02-07 Scott Manufacturing, Inc. Module builder back door latch
US4854076A (en) * 1988-07-15 1989-08-08 Sieben Murray K Remotely operated hatch covers for tank trucks and the like
US5092656A (en) * 1989-10-02 1992-03-03 Payhauler Corporation Automatic latching device for tailgate
US5158340A (en) * 1991-09-05 1992-10-27 Mcneilus Truck And Manufacturing, Inc. Tailgate mechanism for rear loading compactor
US5498067A (en) * 1994-01-14 1996-03-12 Mcneilus Truck And Manufacturing, Inc. Lifting latch hinge for tailgate on refuse hauler/compactor
US6062368A (en) * 1995-10-27 2000-05-16 Wilkinson Company, Inc. Automatic bottom-hinged intake door
US6186306B1 (en) 1995-10-27 2001-02-13 Wilkinson Company, Inc. Automatic bottom-hinged intake door
US6269928B1 (en) 1995-10-27 2001-08-07 Wilkinson Company, Inc. Automatic bottom-hinged intake door
US6880895B1 (en) 2002-03-15 2005-04-19 Somerset Welding & Steel, Inc. Vehicle body having a tailgate system operable in a plurality of modes
US20040180653A1 (en) * 2003-03-12 2004-09-16 The Boeing Company Modular aircraft information network system and an associated method of packaging the same
US20150135604A1 (en) * 2008-08-06 2015-05-21 SafePro, L.P. Safety hatch system
US9745777B2 (en) * 2008-08-06 2017-08-29 SafePro, L.P. Safety hatch system
US10676966B2 (en) 2008-08-06 2020-06-09 Rooftop Anchor Incorporated Safety hatch system
US10370816B2 (en) 2009-06-26 2019-08-06 Rooftop Anchor Incorporated Integrated safety rail protection system
US8899637B2 (en) 2011-07-21 2014-12-02 Cnh Industrial America Llc Round baler tailgate latch
US20180080265A1 (en) * 2016-09-19 2018-03-22 Buyers Products Company Latch assembly and tailgate for vehicle
US10000950B2 (en) * 2016-09-19 2018-06-19 Buyers Products Company Latch assembly and tailgate for vehicle
CN107345466A (zh) * 2017-06-27 2017-11-14 武汉理工大学 厢式电动清扫车尾门启闭、锁紧装置
CN107345466B (zh) * 2017-06-27 2019-01-25 武汉理工大学 厢式电动清扫车尾门启闭、锁紧装置
CN110159125A (zh) * 2019-06-19 2019-08-23 青岛同辉汽车技术有限公司 一种箱门锁紧开启一体化机构
CN110159125B (zh) * 2019-06-19 2024-10-15 青岛同辉汽车技术有限公司 一种箱门锁紧开启一体化机构
US12540495B2 (en) 2022-03-11 2026-02-03 Oshkosh Corporation Refuse vehicle with locking tailgate
US12516554B2 (en) * 2023-05-05 2026-01-06 Con-Tech Manufacturing, Inc. Refuse collection vehicle tailgate lock system

Also Published As

Publication number Publication date
EP0201313A2 (en) 1986-11-12
DK205586D0 (da) 1986-05-05
AU5711286A (en) 1986-11-13
FI861887A7 (fi) 1986-11-07
EP0201313A3 (en) 1987-01-28
FI861887L (fi) 1986-11-07
DK205586A (da) 1986-11-07
NZ216046A (en) 1987-06-30
FI861887A0 (fi) 1986-05-06
NO861783L (no) 1986-11-07

Similar Documents

Publication Publication Date Title
US4665649A (en) Gate operator and latch mechanism for refuse container
US4307541A (en) Tail-gate operating and locking mechanism
US6021606A (en) Lifting mechanism for horizontal hinged doors
US5339494A (en) Vehicle hood with hinge
US4580315A (en) Hinge assembly for compartment lid
CA1061816A (en) Door operator with locking mechanism
US5407261A (en) Retractable storage container
CA1190269A (en) Combined vent and escape hatch
US5518287A (en) Tail gate opening and closing device for a vehicle
EP0309065A2 (en) Convertible header latch mechanism
GB2289713A (en) A locking mechanism having a pivotable and linearly movable tension hook
CA2087310C (en) Operator for an awning type window
US4466644A (en) Multi-positioning latch assembly
US4136621A (en) Railway hopper car door locking mechanism
US6102471A (en) Automatic hold-open mechanism for a canopy of a machine
US4832384A (en) Latch assembly
GB2290060A (en) Two part vehicle tailgate - window springs open when unlocked
US6018912A (en) Vehicle liftgate counter balance system
US4907833A (en) Outside handle device for use in a vehicle
US3825295A (en) Truck cab latch
JPH0230876A (ja) 金物取付け具
US20080210823A1 (en) Control Device for Locking and Unlocking and Aircraft Door and Aircraft Door that Integrates Such a Device
US5105916A (en) Elevator door coupling device
US4488380A (en) Door arrangements
EP0054741B1 (en) Hinged window locking mechanism

Legal Events

Date Code Title Description
AS Assignment

Owner name: DEMPSTER SYSTEMS INC., SPRINGDALE AVENUE AND SOUTH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HUND, HENRY M. JR.;REEL/FRAME:004418/0225

Effective date: 19850506

Owner name: DEMPSTER SYSTEMS INC., A CORP OF OH,TENNESSEE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HUND, HENRY M. JR.;REEL/FRAME:004418/0225

Effective date: 19850506

CC Certificate of correction
CC Certificate of correction
REMI Maintenance fee reminder mailed
AS Assignment

Owner name: SANWA BUSINESS CREDIT CORPORATION A DE CORPORATI

Free format text: SECURITY INTEREST;ASSIGNOR:DEMPSTER, INC., A CORPORATION OF OH;REEL/FRAME:005709/0052

Effective date: 19910304

LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 19910519